The sandbox’s lifecycle is independent of the PR so that the same user or someone else in your team, like an engineer can come back to the same session and keep building until the result is ready to merge. So you can choose to iterate on the first drafts on the same sandbox. Curious, what flow you envision in your case?

Thanks! Lots of use cases. For the workflow you mentioned, the idea is marketing sends you a PR with the live preview. You can see the UI changes and if you need to change anything, you can open the session, which will let you modify, backtrack, or continue their work inside the same sandbox they used.